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Triple_A_Math
Questions (7)
A man with a quadratically shaped head, with profile given by the function h(x)=4-3x^2 where both x and h(x) are measured in
4 answers
254 views
A car is able to drive around a curve the is banked at 18° to the horizontal without sliding. In order for this to occur, μs =
0 answers
229 views
Just out of curiosity, what is everyone's favorite/coolest math formula?
2 answers
286 views
For the trig equation: 2sin(x)tan(x) = tan(x),
Why can't I just divide both sides by tan(x) and be left to solve only 2sin(x)=1?
3 answers
363 views
200 computers are built in a factory. They have a 0.5% defective rate.
What is the probability that the first defective item is
2 answers
263 views
I need to write a function that can determine if each word in a given string contains a vowel. If each word contains a vowel,
2 answers
251 views
There are 15 marbles in a bag; 7 of them are red, the other 8 are not red. 4 marbles are drawn WITHOUT replacement.
What is the
2 answers
421 views
Answers (5)
area of sphere = 4 * pi * r^2 diameter = 2 * radius, so radius = diameter / 2 Can you find the radius from here and sub it into the area formula?
Thanks so much for the help everyone! This practice problem was just a little beyond my grasp so it was nice to see it explained :)
Update: Problem solved... I found the answer :D
Okay thanks! Makes sense now
Awesome. Thanks so much for your help! It's funny actually, because I had the same logic, same numbers, but I realized I made a silly calculator error!
